Cheap flights from Santiago de Compostela to London from £27

The cheapest month to fly to London from Santiago de Compostela is in May. Flight prices, which tend to average around £54, are often lower during this time because this is during the off-season. The month of October is another great option to travel to London, with average flight prices from Santiago de Compostela averaging around £59.

Our data shows that Thursday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £54. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Santiago de Compostela to London for around £150.

The cheapest time of day to fly to London is at midday when flights can be purchased for as low as £54. Flights in the morning are often more expensive, with an average ticket price of £182.

Fly from Santiago de Compostela to London Heathrow for the best Santiago de Compostela - London flight prices

There is only 1 cabin class available to choose from on Santiago de Compostela to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

As of March 2026, prices for Santiago de Compostela to London flights are approximately 100% more expensive when compared to flights at the same time last year.

Historically, on average around 12% of flights between Santiago de Compostela and London have experienced a delay on any given week. The average delay length over the past 12 months has been 119 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, Vueling have had the fewest delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

4 flights are operational daily from Santiago de Compostela to London as of March 2026. The most popular departure time for this route is 16:00, with 86% of flights per day taking off in the afternoon.

31 flights are operational weekly from Santiago de Compostela to London as of March 2026. The most popular departure day for this route is Sun, with 23% of flights per week taking off on this day.